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An improved dual-plasma process for the synthesis of nonagglomerated, organic layer-coated metal nanoparticles is presented. Nanoparticle synthesis is achieved by means of pulsed arc erosion of a copper cathode. Particles are coated in-flight through RF plasma polymerization of ethane. The axially symmetric geometry takes advantage of the initial nanoparticle trajectories and charging effects within the RF plasma, thus enhancing particle collection efficiency.
Date of Publication: Aug. 2008